CN106218866B - A kind of backplate follower of undercarriage - Google Patents
A kind of backplate follower of undercarriage Download PDFInfo
- Publication number
- CN106218866B CN106218866B CN201610692930.7A CN201610692930A CN106218866B CN 106218866 B CN106218866 B CN 106218866B CN 201610692930 A CN201610692930 A CN 201610692930A CN 106218866 B CN106218866 B CN 106218866B
- Authority
- CN
- China
- Prior art keywords
- backplate
- toggle
- rocking arm
- undercarriage
- hinged
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
- B64C25/16—Fairings movable in conjunction with undercarriage elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
- B64C25/18—Operating mechanisms
- B64C25/20—Operating mechanisms mechanical
Abstract
The invention discloses a kind of backplate followers of undercarriage.The backplate follower of the undercarriage includes：The outer barrel being vertically arranged, side wall fix upper connecting shaft and lower connecting shaft；Piston rod for being fixedly linked with wheel hub is partially contained in the outer barrel, and can be moved back and forth along the axis direction of outer barrel and be stretched out or retract；Upper toggle and lower toggle, toggle and lower toggle are hinged and connected on this, and lower toggle is hinged and connected with the piston rod, and upper toggle is hinged and connected with the lower connecting shaft；And rocking arm, the middle part of the rocking arm and the external part of the upper connecting shaft are hinged and connected；The rocking arm is flexibly connected with upper toggle by U-shaped pair, and the rocking arm is movably connected in by U-shaped pair on backplate.The present invention solve the problems, such as undercarriage landing after with damper leg compressed tires with protect inter-plate gap it is too small, entirely while ensure that undercarriage stretches rear backplate and can be fitted closely with fuselage mounted landing gear radome fairing.
Description
Technical field
The present invention relates to a kind of backplate followers of undercarriage, belong to aircraft system field of structural design.
Background technology
Undercarriage backplate is a kind of form of hatch door, and the hatch door connected firmly with undercarriage when referring generally to folding and unfolding has been mainly used for
It falls frame and packs up the pneumatic repairing type at rear undercarriage collection position, while also having certain protective role to undercarriage.
However, existing undercarriage backplate is too small with the gap between tire during undercarriage use, cause to safeguard
Get up very inconvenient.
Invention content
The present invention is intended to provide a kind of backplate follower of undercarriage, which is ensureing the pneumatic of aircraft
Under the premise of performance requirement, tire can be efficiently solved and use the too small problem in process intermediate gap, and structure in undercarriage with backplate
Simply, dependable performance, easy maintenance will be used widely in undercarriage design field.
To achieve the goals above, the technical solution adopted in the present invention is：
A kind of backplate follower of undercarriage, is structurally characterized in that, including：
The outer barrel being vertically arranged, side wall fix upper connecting shaft and lower connecting shaft；
Piston rod for being fixedly linked with wheel hub is partially contained in the outer barrel, and can be along the axis side of outer barrel
It stretches out or retracts to reciprocating movement；
Upper toggle and lower toggle, one end of toggle and one end of lower toggle are hinged and connected on this, and lower torsion
The other end of arm and the lower end of the piston rod are hinged and connected, and the other end of upper toggle and the external part of the lower connecting shaft are cut with scissors
It connects connected；And
Rocking arm, the middle part of the rocking arm and the external part of the upper connecting shaft are hinged and connected；
One end of the rocking arm is flexibly connected with the middle part of upper toggle by U-shaped pair, and the other end of the rocking arm passes through U
Type pair is movably connected on backplate.
The present invention utilizes the straight line compression movement of damper leg itself, rationally designs various pull rods and connector, makes its driving
Backplate follow-up motion.The present invention creatively utilizes the combination of ball secondary, U-shaped pair and revolute, and it is slow dexterously to realize undercarriage
The flexible drive backplate follow-up motion of pillar is rushed, is solved after undercarriage lands with damper leg compressed tires and shield inter-plate gap mistake
Small problem, while ensure that undercarriage stretches rear backplate and can be fitted closely with fuselage mounted landing gear radome fairing entirely.
According to an embodiment of the invention, further optimization can also be made to the present invention, below the skill to be formed after optimization
Art scheme：
Preferably, U-shaped secondary including lower pull rod and lower contact between the rocking arm and upper toggle；The one of the lower pull rod
End be movably connected on the rocking arm, the other end of the lower pull rod is flexibly connected with one end of lower contact, the lower contact it is another
End is flexibly connected with the upper toggle.Further, ball pair is formed between the lower pull rod and upper toggle.
Preferably, the U-shaped secondary activity between the rocking arm and backplate includes upper connecting rod and top connection；The one of the upper connecting rod
End be movably connected on the rocking arm, the other end of the upper connecting rod is flexibly connected with one end of top connection, the top connection it is another
End is flexibly connected with the backplate.Further, ball pair is formed between the upper connecting rod and the rocking arm.
Preferably, the backplate includes the upper guard board being fixedly linked with outer barrel, the lower backplate being hinged and connected with upper guard board；Institute
It states and is movably connected by U-shaped pair between lower backplate and rocking arm.
Compared with prior art, the beneficial effects of the invention are as follows：The backplate follower of the present invention is in the gas for ensureing aircraft
Under the premise of dynamic performance requirement, solve the problems, such as that tire is too small and simple in structure using process intermediate gap in undercarriage with backplate,
Dependable performance, easy maintenance the features such as having a wide range of application, are designed particularly suitable for landing-gear-door mechanism, will be risen in aircraft
Frame design field is fallen to be used widely.
Description of the drawings
Fig. 1 is the kinematic sketch of an embodiment of the present invention；
Fig. 2 is structural schematic diagram of the present invention when damper leg stretches entirely；
Fig. 3 is the positions I detailed view in Fig. 2；
Fig. 4 is structural schematic diagram of the present invention in damper leg full compression.
In figure
1- piston rods；2- tires；Toggle under 3-；The upper toggles of 4-；Backplate under 5-；6- rocking arms；7- lower contacts；8- is pulled down
Bar；9- upper connecting rods；10- top connections；11- outer barrels；Connecting shaft under 12-；The upper connecting shafts of 13-；14- upper guard boards；Backplate is not transported under A-
Position before dynamic；The line of demarcation of B- upper guard boards and lower backplate；The hinge point of C- upper guard boards and lower backplate.
Specific implementation mode
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the present invention can be combined with each other.For sake of convenience, hereinafter as occurred
"upper", "lower", "left", "right" printed words only indicate consistent with the upper and lower, left and right direction of attached drawing itself, do not play limit to structure
It is set for using.
A kind of backplate follower of undercarriage, as shown in Figs 1-4, mainly have by outer barrel, piston rod, toggle, under connect
The compositions such as head, top connection, lower pull rod, upper connecting rod, rocking arm and backplate, outer barrel 11 are fixed, and cylindrical pair, tire 3 are formed with piston rod 1
Pass through wheel hub and solid rod joint.
As shown in Figure 1, piston rod 1 and lower toggle 3, lower toggle 3 and upper toggle 4, upper toggle 4 and outer barrel 11 are equal
Form revolute.Realize and connect with the flexural pivot of upper toggle 4 that upper end connects under by the bearing installed thereon in lower 8 lower end of pull rod
First 7 connecting rocker arm 6 forms U-shaped pair.Rocking arm 6 forms revolute using the upper connecting shaft 12 stretched out on outer barrel 11.9 right end of upper connecting rod
With 6 groups of balling-up pairs of rocking arm, backplate 5 forms U-shaped pair under the connection of left end top connection 10.It lower backplate 5 and connects firmly on outer barrel 11
Upper guard board 14 forms revolute.
When 2 stand under load of gear tyre compresses, piston rod 1 is driven to compress, then passes through upper toggle 4, lower toggle 3
Rotation drives lower pull rod 8 that rocking arm 6 is pulled to rotate, and the rotation driving upper connecting rod 9 of rocking arm 6 moves, to make lower backplate 11 realize outward
Opening movement.
In conclusion secondary, U-shaped secondary and revolute the combination using ball of the invention, realizes undercarriage buffering
Pillar is flexible to drive backplate follow-up motion, solves too small with damper leg compressed tires and shield inter-plate gap after undercarriage lands
The problem of, while ensure that undercarriage stretches rear backplate and can be fitted closely with fuselage mounted landing gear radome fairing entirely.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the present invention, without
For limiting the scope of the invention, after having read the present invention, various equivalent forms of the those skilled in the art to the present invention
Modification each fall within the application range as defined in the appended claims.
Claims (6)
1. a kind of backplate follower of undercarriage, which is characterized in that including：
The outer barrel being vertically arranged（11）, the upper connecting shaft of side wall fixation（12）With lower connecting shaft（13）；
Piston rod for being fixedly linked with wheel hub（1）, it is partially contained in the outer barrel（11）It is interior, and can be along outer barrel（11）'s
Axis direction moves back and forth and stretches out or retract；
Upper toggle（4）With lower toggle（3）, toggle on this（4）One end and lower toggle（3）One end be hinged and connected,
And lower toggle（3）The other end and the piston rod（1）Lower end be hinged and connected, upper toggle（4）The other end with it is described
Lower connecting shaft（13）External part be hinged and connected；And
Rocking arm（6）, the rocking arm（6）Middle part and the upper connecting shaft（12）External part be hinged and connected；
The rocking arm（6）One end and upper toggle（4）Middle part pass through U-shaped secondary flexible connection, the rocking arm（6）The other end
It is movably connected on backplate by U-shaped pair.
2. the backplate follower of undercarriage according to claim 1, which is characterized in that the rocking arm（6）With upper torsion
Arm（4）Between it is U-shaped it is secondary include lower pull rod（8）And lower contact（7）；The lower pull rod（8）One end be movably connected on described
Toggle（4）On, the lower pull rod（8）The other end and lower contact（7）One end flexible connection, the lower contact（7）The other end
With the rocking arm（6）Flexible connection.
3. the backplate follower of undercarriage according to claim 2, which is characterized in that the lower pull rod（8）With upper torsion
The arm of force（4）Between formed ball pair.
4. the backplate follower of undercarriage according to claim 1, which is characterized in that the rocking arm（6）With backplate it
Between U-shaped secondary activity include upper connecting rod（9）And top connection（10）；The upper connecting rod（9）One end be movably connected in the rocking arm
（6）On, the upper connecting rod（9）The other end and top connection（10）One end flexible connection, the top connection（10）The other end and institute
State backplate flexible connection.
5. the backplate follower of undercarriage according to claim 4, which is characterized in that the upper connecting rod（9）With it is described
Rocking arm（6）Between formed ball pair.
6. the backplate follower of the undercarriage according to one of claim 1-5, which is characterized in that the backplate include with
Outer barrel（11）The upper guard board being fixedly linked（14）, with upper guard board（14）The lower backplate being hinged and connected（5）；The lower backplate（5）With
Rocking arm（6）Between be movably connected by U-shaped pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610692930.7A CN106218866B (en) | 2016-08-19 | 2016-08-19 | A kind of backplate follower of undercarriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610692930.7A CN106218866B (en) | 2016-08-19 | 2016-08-19 | A kind of backplate follower of undercarriage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106218866A CN106218866A (en) | 2016-12-14 |
| CN106218866B true CN106218866B (en) | 2018-07-27 |
Family
ID=57554135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610692930.7A Active CN106218866B (en) | 2016-08-19 | 2016-08-19 | A kind of backplate follower of undercarriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106218866B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107380406B (en) * | 2017-07-13 | 2020-04-28 | 江西洪都航空工业集团有限责任公司 | Aircraft backplate allies oneself with disconnected mechanism |
| CN108100237B (en) * | 2017-11-30 | 2021-01-05 | 江西洪都航空工业集团有限责任公司 | Novel aircraft backplate allies oneself with disconnected mechanism |
| CN109720538B (en) * | 2018-11-12 | 2023-08-01 | 中航通飞华南飞机工业有限公司 | Built-in wheel cabin structure of aircraft fuselage side |
| CN109720555B (en) * | 2018-11-12 | 2023-05-23 | 中航通飞华南飞机工业有限公司 | Large landing gear follow-up cabin door |
| CN109850132B (en) * | 2018-12-07 | 2022-08-09 | 中国航空工业集团公司成都飞机设计研究所 | Separable landing gear leg-retracting mechanism |
| CN110576966B (en) * | 2019-09-29 | 2023-03-28 | 中国直升机设计研究所 | Strut type undercarriage |
| CN114771810B (en) * | 2022-06-24 | 2022-09-13 | 西安羚控电子科技有限公司 | Undercarriage system and unmanned aerial vehicle on warship |
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|---|---|---|---|---|
| CN102568874A (en) * | 2011-12-13 | 2012-07-11 | 江西洪都航空工业集团有限责任公司 | Electric switch trigger mechanism on actuating cylinder |
| CN104176244A (en) * | 2014-09-17 | 2014-12-03 | 江西洪都航空工业集团有限责任公司 | Linked landing gear cabin door folding and unfolding device |
| CN105056543A (en) * | 2015-08-03 | 2015-11-18 | 金剑 | Five-link nose landing gear |
| CN105584628A (en) * | 2015-10-27 | 2016-05-18 | 成都飞机工业（集团）有限责任公司 | Guard plate and landing gear linkage retracting device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2893587B1 (en) * | 2005-11-21 | 2009-06-05 | Airbus France Sas | TRAIN BOX WITH DISSOCATED STRUCTURE |
| US9120566B2 (en) * | 2010-10-18 | 2015-09-01 | Honda Patents & Technologies North America, Llc | Quick release assembly for aircraft landing gear |
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2016
- 2016-08-19 CN CN201610692930.7A patent/CN106218866B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568874A (en) * | 2011-12-13 | 2012-07-11 | 江西洪都航空工业集团有限责任公司 | Electric switch trigger mechanism on actuating cylinder |
| CN104176244A (en) * | 2014-09-17 | 2014-12-03 | 江西洪都航空工业集团有限责任公司 | Linked landing gear cabin door folding and unfolding device |
| CN105056543A (en) * | 2015-08-03 | 2015-11-18 | 金剑 | Five-link nose landing gear |
| CN105584628A (en) * | 2015-10-27 | 2016-05-18 | 成都飞机工业（集团）有限责任公司 | Guard plate and landing gear linkage retracting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106218866A (en) | 2016-12-14 |
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